Picture frame



FIG. 1 is a front elevational view of a picture frame, showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a perspective view thereof shown on an enlarged scale; and

FIG. 8 is a perspective view thereof shown in an exploded condition. 

The ornamental design for a picture frame, substantially as shown. 